RFR: 8322732: ForkJoinPool may underutilize cores in async mode [v3]
Doug Lea
dl at openjdk.org
Wed May 22 15:32:42 UTC 2024
> This set of changes address causes of poor utilization with small numbers of cores due to overly aggressive contention avoidance. A number of further adjustments were needed to still avoid most contention effects in deployments with large numbers of cores
Doug Lea has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 36 additional commits since the last revision:
- Merge branch 'openjdk:master' into JDK-8322732
- More performance tradoffs
- Address review comments
- Merge branch 'openjdk:master' into JDK-8322732
- Repack some fields; adjust control flow
- Merge branch 'openjdk:master' into JDK-8322732
- Next version
- Merge branch 'openjdk:master' into JDK-8322732
- Reduce unneeded signals
- Merge branch 'openjdk:master' into JDK-8322732
- ... and 26 more: https://git.openjdk.org/jdk/compare/5072e63c...f1fc4f3e
-------------
Changes:
- all: https://git.openjdk.org/jdk/pull/19131/files
- new: https://git.openjdk.org/jdk/pull/19131/files/8689ac12..f1fc4f3e
Webrevs:
- full: https://webrevs.openjdk.org/?repo=jdk&pr=19131&range=02
- incr: https://webrevs.openjdk.org/?repo=jdk&pr=19131&range=01-02
Stats: 64729 lines in 1007 files changed: 46563 ins; 12655 del; 5511 mod
Patch: https://git.openjdk.org/jdk/pull/19131.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/19131/head:pull/19131
PR: https://git.openjdk.org/jdk/pull/19131
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